San Mateo County property record for 840 9th Ave, San Mateo, CA 94402
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 1,270 sqft · built 1927 |
| Lot Size | 0.122 acres (5,312 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,100,000 (Mar 2026) |
| Tax Bill | $9,337 (2025) |
| Deeds & Mortgages | Mar 2026 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 033-315-040 |
| Primary APN | 033-315-040 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 1,270 sqft |
| 1st Floor Area | 1,270 sqft |
| Basement Area | 370 sqft |
| Year Built | Built 1927 |
|---|---|
| Effective Year Built | Effective 1927 |
| Architectural Style | Multi-Family |
| Lot Area | 5,312 sqft (0.122 acres) |
| Lot Dimensions | 132 ft deep x 40 ft wide |
| Garage Area | 990 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 840 9TH AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-1432 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R20000 |
| Legal Description | LOT 3 BLOCK 20 RESUB OF BLOCKS 5 TO 10 16 TO 31 EAST SAN MATEO RSM 6/36 CITY OF SAN MATEO |
| Legal Subdivision | EAST SAN MATEO |
| Legal Block | 20,5- |
| Legal Lot Number | 3 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1025 |
| Census Tract | 606300 |
840 9th Ave is owned by an individual who bought it in March 2026.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 530 VIENNA ST, SAN FRANCISCO, CA 94112-2818 |
| Owner Type | Individual |
| Vesting | Single Man |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 6, 2026 · Amount on File |
| Deed Sale | Mar 6, 2026 · Amount on File |
| Deed Document Number | 202611362 |
| Prior Transfer Date | Jan 31, 1995 |
| Prior Transfer Doc | 0000015041 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Mar 6, 2026 |
| Property Address | 840 9TH AVE, SAN MATEO, CA 94402-1432 |
| Document Number | 0000011362 |
| Map Reference | MB 6 PG 36 |
| Instrument Date | Feb 5, 2026 |
| Instrument | 2026-011362 |
| Transaction Type | Transfer |
| Record Updated | Apr 15, 2026 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $6,710.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 530 VIENNA ST, SAN FRANCISCO, CA 94112-2818 |
| Document Number | 0000011363 |
|---|---|
| Date | Mar 6, 2026 |
| Instrument | 2026-011363 |
| Name | AMWEST FUNDING CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Apr 1, 2056 |
The 2025 property tax bill for 840 9th Ave was $9,337, up 5.4% from the year before.
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | San Mateo City |
| Elementary School District | San Mateo-Foster City Elementary School District (KG - 08) |
| Secondary School District | San Mateo Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,621,800 (+286.39%) Land $1,326,000 Building $295,800 | ||
| 2025 | $9,337.00 (+5.38%) | $419,730 Land $146,410 Building $273,320 | |
| 2024 | $8,860.00 (-2.87%) | ||
| 2023 | $9,122.00 (+2.14%) | $403,433 Land $140,726 Building $262,707 | $1,633,500 |
| 2022 | $8,931.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 840 9th Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 5 in force |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
The area around 840 9th Ave has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CALIFORNIA WATER SERVICE - SAN MATEO private · serves 103,536 people · EPA ID CA4110008 |
|---|---|
| Water Source | Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM |
| Last State Inspection | Mar 2025 |
| Lead | 4 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 915 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures